Google Chrome before 5.0.375.127 and webkitgtk before 1.2.6 do not properly support the Ruby language, which allows attackers to cause a denial of service (memory corruption) or possibly have unspecified other impact via unknown vectors.

From Red Hat Security Advisory 2011:0177 :

Updated webkitgtk packages that fix several security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

WebKitGTK+ is the port of the portable web rendering engine WebKit to the GTK+ platform.

Multiple memory corruption flaws were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-1782, CVE-2010-1783, CVE-2010-1784, CVE-2010-1785, CVE-2010-1787, CVE-2010-1788, CVE-2010-1790, CVE-2010-1792, CVE-2010-1807, CVE-2010-1814, CVE-2010-3114, CVE-2010-3116, CVE-2010-3119, CVE-2010-3255, CVE-2010-3812, CVE-2010-4198)

Multiple use-after-free flaws were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-1780, CVE-2010-1786, CVE-2010-1793, CVE-2010-1812, CVE-2010-1815, CVE-2010-3113, CVE-2010-3257, CVE-2010-4197, CVE-2010-4204)

Two array index errors, leading to out-of-bounds memory reads, were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash. (CVE-2010-4206, CVE-2010-4577)

A flaw in WebKit could allow malicious web content to trick a user into thinking they are visiting the site reported by the location bar, when the page is actually content controlled by an attacker.
(CVE-2010-3115)

It was found that WebKit did not correctly restrict read access to images created from the 'canvas' element. Malicious web content could allow a remote attacker to bypass the same-origin policy and potentially access sensitive image data. (CVE-2010-3259)

A flaw was found in the way WebKit handled DNS prefetching. Even when it was disabled, web content containing certain 'link' elements could cause WebKitGTK+ to perform DNS prefetching. (CVE-2010-3813)

Users of WebKitGTK+ should upgrade to these updated packages, which contain WebKitGTK+ version 1.2.6, and resolve these issues. All running applications that use WebKitGTK+ must be restarted for this update to take effect.

Multiple memory corruption flaws were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-1782, CVE-2010-1783, CVE-2010-1784, CVE-2010-1785, CVE-2010-1787, CVE-2010-1788, CVE-2010-1790, CVE-2010-1792, CVE-2010-1807, CVE-2010-1814, CVE-2010-3114, CVE-2010-3116, CVE-2010-3119, CVE-2010-3255, CVE-2010-3812, CVE-2010-4198)

Multiple use-after-free flaws were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-1780, CVE-2010-1786, CVE-2010-1793, CVE-2010-1812, CVE-2010-1815, CVE-2010-3113, CVE-2010-3257, CVE-2010-4197, CVE-2010-4204)

Two array index errors, leading to out-of-bounds memory reads, were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash. (CVE-2010-4206, CVE-2010-4577)

A flaw in WebKit could allow malicious web content to trick a user into thinking they are visiting the site reported by the location bar, when the page is actually content controlled by an attacker.
(CVE-2010-3115)

It was found that WebKit did not correctly restrict read access to images created from the 'canvas' element. Malicious web content could allow a remote attacker to bypass the same-origin policy and potentially access sensitive image data. (CVE-2010-3259)

A flaw was found in the way WebKit handled DNS prefetching. Even when it was disabled, web content containing certain 'link' elements could cause WebKitGTK+ to perform DNS prefetching. (CVE-2010-3813)

All running applications that use WebKitGTK+ must be restarted for this update to take effect.

Multiple cross-site scripting, denial of service and arbitrary code execution security flaws were discovered in webkit.

Please consult the CVE web links for further information.

The updated packages have been upgraded to the latest version (1.2.7) to correct these issues.

Updated webkitgtk packages that fix several security issues are now available for Red Hat Enterprise Linux 6.

The Red Hat Security Response Team has rated this update as having moderate security impact. Common Vulnerability Scoring System (CVSS) base scores, which give detailed severity ratings, are available for each vulnerability from the CVE links in the References section.

WebKitGTK+ is the port of the portable web rendering engine WebKit to the GTK+ platform.

Multiple memory corruption flaws were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-1782, CVE-2010-1783, CVE-2010-1784, CVE-2010-1785, CVE-2010-1787, CVE-2010-1788, CVE-2010-1790, CVE-2010-1792, CVE-2010-1807, CVE-2010-1814, CVE-2010-3114, CVE-2010-3116, CVE-2010-3119, CVE-2010-3255, CVE-2010-3812, CVE-2010-4198)

Multiple use-after-free flaws were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash or, potentially, execute arbitrary code with the privileges of the user running the application. (CVE-2010-1780, CVE-2010-1786, CVE-2010-1793, CVE-2010-1812, CVE-2010-1815, CVE-2010-3113, CVE-2010-3257, CVE-2010-4197, CVE-2010-4204)

Two array index errors, leading to out-of-bounds memory reads, were found in WebKit. Malicious web content could cause an application using WebKitGTK+ to crash. (CVE-2010-4206, CVE-2010-4577)

A flaw in WebKit could allow malicious web content to trick a user into thinking they are visiting the site reported by the location bar, when the page is actually content controlled by an attacker.
(CVE-2010-3115)

It was found that WebKit did not correctly restrict read access to images created from the 'canvas' element. Malicious web content could allow a remote attacker to bypass the same-origin policy and potentially access sensitive image data. (CVE-2010-3259)

A flaw was found in the way WebKit handled DNS prefetching. Even when it was disabled, web content containing certain 'link' elements could cause WebKitGTK+ to perform DNS prefetching. (CVE-2010-3813)

Users of WebKitGTK+ should upgrade to these updated packages, which contain WebKitGTK+ version 1.2.6, and resolve these issues. All running applications that use WebKitGTK+ must be restarted for this update to take effect.

Gustavo Noronha Silva reports :

With help from Vincent Danen and other members of the Red Hat security team, the following CVE's where fixed.

Versions of Google Chrome earlier than 5.0.375.127 are potentially affected by multiple vulnerabilities :

A memory corruption issue with file dialog. (Bug 45400)

A memory corruption issue with SVGs. (Bug 49596)

An issue relating to a bad cast with text editing. (Bug 49268)

  - A possible address bar spoofing vulnerability caused by a history bug. (Bug 49964)

  - A memory corruption issue in MIME type handling. (Bugs 50515, 51835)

A crash on shutdown due to a notifications bug. (Bug 50553)

Omnibox autosuggest is enabled when a user might be typing a password. (Bug 51146)

A memory corruption issue in Ruby support. (Bug 51654)

A memory corruption issue in Geolocation support. (51670)

The version of Google Chrome installed on the remote host is earlier than 5.0.375.127.  Such versions are reportedly affected by multiple vulnerabilities :

  - A memory corruption vulnerability exists with the file     dialog. (Issue #45400)

  - A memory corruption vulnerability exists when     processing SVG files. (Issue #49596)

  - A vulnerability exists due to a bad cast with text     editing. (Issue #49628)

  - A vulnerability exists that possibly allows address     bar spoofing via a history bug. (Issue #49964)

  - A memory corruption vulnerability exists in MIME type     handling. (Issue #50515, #51835)

  - A vulnerability exists due to a crash on shutdown via a     notifications bug. (Issue #50553)

  - A vulnerability can be triggered in omnibox autosuggest     if the user may be going to type a password.
    (Issue #51146)

  - A memory corruption vulnerability exists in ruby     support. (Issue #51654)

  - A memory corruption vulnerability exists in Geolocation     support. (Issue #51670)

ID	Name	Product	Family	Severity
68187	Oracle Linux 6 : webkitgtk (ELSA-2011-0177)	Nessus	Oracle Linux Local Security Checks	critical
60943	Scientific Linux Security Update : webkitgtk on SL6.x i386/x86_64	Nessus	Scientific Linux Local Security Checks	critical
52523	Mandriva Linux Security Advisory : webkit (MDVSA-2011:039)	Nessus	Mandriva Local Security Checks	critical
51672	RHEL 6 : webkitgtk (RHSA-2011:0177)	Nessus	Red Hat Local Security Checks	critical
49189	FreeBSD : webkit-gtk2 -- Multiple vulnerabilities (9bcfd7b6-bcda-11df-9a6a-0015f2db7bde)	Nessus	FreeBSD Local Security Checks	critical
800956	Google Chrome < 5.0.375.127 Multiple Vulnerabilities	Log Correlation Engine	Web Clients	high
48383	Google Chrome < 5.0.375.127 Multiple Vulnerabilities	Nessus	Windows	high

Detections

Analytics

CVE-2010-3119

high

Tenable Plugins

critical

critical

critical

critical

critical

high

high